1. H. Lamb, Aeronautical Research Committee Reports and Memoranda, No. 1010 (1926).
2. C. N. H. Lock,ibid, No. 1275 (1930).
3. Flow around a Sphere in a Circular Tube
4. L. M. Milne-Thompson,Theoretical Hydrodynamics(The MacMillan Company, New York, 1955), 3rd ed., Ch. XVIII and especially article 18.24 and problem 2.
5. A. Sommerfeld,Mechanics of Deformable Bodies(Academic Press Inc., New York, 1950), Article 20.